-Tyranny-
In the quiet town of Mystic Falls, the Gilbert family has always been bound by love, loss, and secrets. But long before vampires and ancient evils resurfaced, another secret was growing within their home.
Adelaide "Ada" Gilbert, the adopted daughter of the Gilberts, has always been as close to Elena and Jeremy as any sibling could be. Especially Elena. The two were inseparable-sharing dreams, fears, and eventually, the impossible. When Ada was younger, she began exhibiting unusual abilities-sparks of something cosmic, something alive. The first person she ever told was a young Elena. Elena, wide-eyed and fearless, simply called it cool.
But as they grew older, Ada's powers became volatile. What once felt like a gift began to feel like a storm barely contained beneath her skin. Afraid of hurting the people she loved, Ada made the hardest choice of her life-she left Mystic Falls to get a hold on her abilities. To the world, she ran away. To Elena, she was protecting them.
Now, years later, Adelaide has returned.
She has finally gained control. She has learned the truth.
Ada is the true host for the Phoenix Force-a cosmic force of rebirth and death, an all-powerful entity of fire and creation that has chosen her as its vessel. And soon, she is expected to become one with the Phoenix Force completely, ascending beyond anything the supernatural world has ever seen.
(Pretty obvious that this isn't one of those fics that make Elena out to be some evil mastermind who for some reason hates the OC even though they're supposed to be siblings. I hate those fics).